Artificial dam and coal pillar dam of underground reservoir in coal mine have great differences in material, thickness and stress. In addition to establishing similar model, how to carry out test to study the stability of their combination?
GOOD QUESTION!
Selfconsistent noncollinear magnetic calculations can be done in VASP. I am wondering how VASP update the spin directions at each local site. For molecular dynamics, VASP search the next...
16 January 2021 1,398 3 View
I want to ligate a linear 1.7kbp plasmid with the EcoRI sites at two sides, but when I use the quick ligase kit from NEB to test the ligation efficiency it is hard to ligate it. Is there anyone...
08 December 2020 3,442 3 View
Recently I have been involved in this problem: After expressed by adding IPTG, lysed with B-PER, and resolved with Buffer B (8M urea), incubate with Ni-NTA beads, everything looks fine. When I...
21 November 2020 7,416 3 View
Hi, I was doing the Abaqus explicit model for a plain woven fabric where two types of yarns(PU&PA) were set as the weft and one type of yarn(PA) was set as the warp. When the load applied to the...
10 September 2020 1,164 2 View
I am graduate from other major, and now working in computer science and technology, my roomates are mostly researching on image recognition. I want to switch to it and learn how to cooperate with...
21 August 2020 2,888 9 View
I differentiated THP-1 cells to macrophages using PMA(100ng/ml) and then used lentivirus to deliver shRNA to knockdown my target genes. Unfortunately, it was too difficult to be transfected...
16 August 2020 5,073 3 View
I want to rotate the 1,2 components of OBS to the R, T components, but the SAC command running results show that the two components are not horizontal. Could anyone can teach me how to correct...
06 July 2020 2,536 3 View
People are told that paracetamol or ibuprofen can only be used to treat the symptoms of COVID-19, but we think that taking paracetamol and vitamin C or ibuprofen and vitamin C every day is a...
01 July 2020 3,058 4 View
when I run ORCA, I got an error as follows: ORCA finished by error termination in GTOInt Calling Command: mpiexec -np 4 D:\ORCA421\orca_gtoint_mpi.exe na20.int.tmp na20 [file...
08 May 2020 5,444 3 View
Dear Colleague, I would like to find some original literatures studying on aethetic feeling. Many literatures have focused on how to possess this capability, like experiential learning. But it...
02 May 2020 6,966 3 View
NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...
01 March 2021 1,189 3 View
I am trying to classify and analyze the results of an SDS-PAGE based array for bacterial detection using machine learning, but I have trouble finding the best way to represent the results with...
27 February 2021 9,176 3 View
I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...
25 February 2021 1,920 6 View
My master's research is in info retrieval and text mining. I would be grateful if you could help me to select a good topic for my phd research proposal.
24 February 2021 393 14 View
Hi I am trying to segment a sentinel2 image. At this stage, I want to run a binary classifier that assigns each pixel to either farm or non-farm pixel. For this purpose, I have 4 10m bands...
15 February 2021 3,596 9 View
Dear I have an air reservoir with 50 bar pressure , this reservoir is fed by 2 bar air pressure source, I would like to instal air pump ( 30 m3/h ) to evacuate the 2 bar fed pressure so I always...
06 February 2021 3,520 3 View
I thought it might be mien from decades ago when I did research in math, but it is not mine.
03 February 2021 7,712 4 View
What is the different between Lab XRF and Hanheld XRF, is it accurate and useable to analyze sedimentary rocks?
23 January 2021 9,941 6 View
I am doing a deep research on the comparison of the process of extraction of natural diamonds and synthetic diamonds, and their environmental impact I would appreciate you could share your...
19 January 2021 1,359 3 View
Hi all, What I know the permeability of matrix and fracture can be in a broad range in fractured reservoirs. Am looking for the most usual range for their permeability separately. I will be highly...
15 January 2021 5,271 2 View